package com.mhy.book.mapper.impl;

import com.mhy.book.mapper.BookMapper;

public class BookMapperImpl implements BookMapper {

    public BookMapperImpl(){
        System.out.println("Construct");
    }
    @Override
    public String selectById(Integer id){
        System.out.println("selectById");
        return "book";
    }

    public void init(){
        System.out.println("init");
    }

    public void destroy(){
        System.out.println("destroy");
    }
}
